Collection: Pulleys - U Groove Idler - Single Row

Pulleys -> U Groove Idler -> Single Row

There are 3 products in the sub-categories of Pulleys - U Groove Idler - Single Row. Browse the Pulleys - U Groove Idler - Single Row products table. To narrow down the selection, please choose a sub-category from the links below.

Category Details

This category includes various types of u groove idler pulleys.
  • Use with round belts such as Round Seamless Urethane or O-Rings
  • Also used to run on round shafting or curved tracks

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Pulleys - U Groove Idler - Single Row category on the MBA Minibearings main store.
Maximum Cable Diameter (H) Outside Diameter (OD) Bore (B) Body Width Overall Width (OAL) Dia. to Base of Groove (P) Indicative
Image
U Groove Idler Pulleys - 0.79x15.875x3.175 mm Single Row - Nylon Polyamide 6/6 Pulley
Maximum Cable Diameter (H)
0.79
mm
+ 0.127 / - 0.000
(Equiv. 0.031 in.)
Outside Diameter (OD)
15.875
mm

(Equiv. 0.625 in.)
Bore (B)
3.175
mm

(Equiv. 0.125 in.)
Overall Width (OAL)
3.175
Dia. to Base of Groove (P)
12.70
mm
U Groove Idler Pulleys - 0.79x15.875x3.175 mm - Nylon Polyamide 6/6
Material: Nylon (Polyamide 6/6)   
Category: Pulleys - U Groove Idler - Single Row - Plastic With Bearing
Part Number: PUI008-0159-032-N-BB (Each)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 05, 2026
Regular price $72.77 AUD
Regular price Sale price $72.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H) Outside Diameter (OD) Bore (B) Body Width Indicative
Image
U Groove Idler Pulleys - 0.79x15.875x3.175 mm Single Row - Nylon Polyamide 6/6 Pulley
Maximum Cable Diameter (H)
0.79
mm
+ 0.127 / - 0.000
(Equiv. 0.031 in.)
Outside Diameter (OD)
15.875
mm

(Equiv. 0.625 in.)
Bore (B)
3.175
mm

(Equiv. 0.125 in.)
U Groove Idler Pulleys - 0.79x15.875x3.175 mm - Nylon Polyamide 6/6
Material: Nylon (Polyamide 6/6)    Overall Width (OAL): 3.175    Dia. to Base of Groove (P): 12.70 mm   
Category: Pulleys - U Groove Idler - Single Row - Plastic With Bearing
Part Number: PUI008-0159-032-N-BB (Each)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 05, 2026
Regular price $72.77 AUD
Regular price Sale price $72.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
U Groove Idler Pulleys - 2.39x38.1x6.452 mm Single Row - Acetal - Black Pulley
Maximum Cable Diameter (H)
2.39
mm
+/- 0.127
(Equiv. 0.094 in.)
Outside Diameter (OD)
38.10
mm

(Equiv. 1.5 in.)
Bore (B)
6.452
mm

(Equiv. 0.254 in.)
Overall Width (OAL)
7.137
Dia. to Base of Groove (P)
31.75
mm
U Groove Idler Pulleys - 2.39x38.1x6.452 mm - Acetal - Black
Material: Acetal - Black   
Category: Pulleys - U Groove Idler - Single Row - Plastic With Plain Bore
Part Number: PUI024-0381-065-A (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
Regular price $663.59 AUD
Regular price Sale price $663.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
U Groove Idler Pulleys - 2.39x38.1x6.452 mm Single Row - Acetal - Black Pulley
Maximum Cable Diameter (H)
2.39
mm
+/- 0.127
(Equiv. 0.094 in.)
Outside Diameter (OD)
38.10
mm

(Equiv. 1.5 in.)
Bore (B)
6.452
mm

(Equiv. 0.254 in.)
U Groove Idler Pulleys - 2.39x38.1x6.452 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 7.137    Dia. to Base of Groove (P): 31.75 mm   
Category: Pulleys - U Groove Idler - Single Row - Plastic With Plain Bore
Part Number: PUI024-0381-065-A (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
Regular price $663.59 AUD
Regular price Sale price $663.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
U Groove Idler Pulleys - 4.76x31.75x6.35 mm Single Row - Steel Pulley
Maximum Cable Diameter (H)
4.76
mm

(Equiv. 0.187 in.)
Outside Diameter (OD)
31.75
mm

(Equiv. 1.25 in.)
Bore (B)
6.350
mm

(Equiv. 0.25 in.)
Body Width
9.53
mm
Overall Width (OAL)
11.10
Dia. to Base of Groove (P)
22.23
mm
U Groove Idler Pulleys - 4.76x31.75x6.35 mm - Steel
Material: Steel   
Category: Pulleys - U Groove Idler - Single Row - Steel
Part Number: PUI048-0318-064-ZB (PK-25)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
Regular price $1,007.95 AUD
Regular price Sale price $1,007.95 AUD
Priced, Stocked and Sold Per 25 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
U Groove Idler Pulleys - 4.76x31.75x6.35 mm Single Row - Steel Pulley
Maximum Cable Diameter (H)
4.76
mm

(Equiv. 0.187 in.)
Outside Diameter (OD)
31.75
mm

(Equiv. 1.25 in.)
Bore (B)
6.350
mm

(Equiv. 0.25 in.)
Body Width
9.53
mm
U Groove Idler Pulleys - 4.76x31.75x6.35 mm - Steel
Material: Steel    Overall Width (OAL): 11.10    Dia. to Base of Groove (P): 22.23 mm   
Category: Pulleys - U Groove Idler - Single Row - Steel
Part Number: PUI048-0318-064-ZB (PK-25)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
Regular price $1,007.95 AUD
Regular price Sale price $1,007.95 AUD
Priced, Stocked and Sold Per 25 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.